• 한국도서관정보학회지
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• 제4권
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• pp.211-236
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• 1977

Many have been concerned with the entry of serials in cataloging. Thouzh they believc the form of AACR 6 should be revised, the agreement was not yet reached among them. Whercas some librarians advocate no different entry in cataioging between monographs and serials, some agree that all serials are to be entered under its title. Main arguments are on the concepts of "corporate authorship" and "generic titlc". On account of disagreemefit on these concepts, there appear different ways 9T serials entry in various catalogs or bibliogaphies. Being not clearly defined the concept of "corporate authorship" in Korcan Cltaloging Rules, main cntry of a scrial was quite different either in a few national bibliographies or some universities' catalogs in T a e g ~C ity. In consideration 01 the incompleteness and changing authorship or diffused riuthorship of serials, it is desirable to revise and simplif1, - our czttaloging rules as to all the serials are to be entered under its titlc. This would be in ac.:ord +;ith International Stand~rdso n serials, eg. ISDS and ISBD(S). When a generic term is included in a title, it will not be sn important groblcm as the title mould be usi~ally made up in the form of "corporate name+gcncric term". This is duc to the difference of construction of thc words bciwcen Korean and English languages.ds bciwcen Korean and English languages.

• 한국도서관정보학회지
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• 제40권2호
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• pp.69-86
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• 2009

이 연구의 목적은 정리업무 아웃소싱을 시행하고 있는 대학도서관에서의 정리업무 품질관리 방안에 대해 논의하는 것이다. 이를 위해 선행연구를 조사하였고 실제 아웃소싱을 시행하고 있는 도서관에서의 품질관리현황에 대해 조사 분석하였다. 목록을 생산하고 품질을 관리하는 방식에 대해 논의하였고 정리 업무량의 변화를 분석하였다. 마지막으로 결론에서는 정리업무 아웃소싱의 품질 향상을 위해 다음을 제안하였다. (1) 품질에 대한 정의와 상세한 업무 매뉴얼을 개발하여 그에 따라 업무를 하도록 한다. (2) 자관의 핵심지식과 기술을 보유하고 이를 계속 전수할 수 있도록 한다. (3) 자체 교열시스템의 도입을 고려한다. (4) 도서관과 아웃소싱업체간의 긴밀한 의사소통을 유지한다. (5) 업체직원은 업무에 필요한 교육을 이수하도록 한다.

• 한국비블리아학회지
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• 제23권1호
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• pp.47-63
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• 2012

본 연구에서는 조기표를 활용하여 차세대 도서관 목록(NGC)에서 강조하는 검색 결과의 패싯 내비게이션 기능을 개선하고자 하였다. 조기표는 자료의 형식적인 측면이나 내용 측면을 체계적으로 나타내므로, 기존의 NGC에서 제공하고 있는 주요 패싯인 언어나 발행년도, 주제(대구분)와 같이 효과적인 패싯이 될 수 있다. 이에 한국십진분류법(KDC)을 적용한 서지레코드의 분류기호를 분석하여, 본표와 조기표의 합성 현황과 특징을 도출하였다. 그리고 이를 바탕으로 본표에 합성된 조기성 기호가 패싯 내비게이션 기능 강화에 활용될 수 있음을 제안하였다. 이 방안은 분류기호를 부여하기 위해 기존에 이루어져 왔던 주제 분석 과정의 산물을 재사용할 수 있다는 추가적인 이점도 가지고 있다.

• 천문학회지
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• 제43권6호
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• pp.191-200
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• 2010

We present the Korea Institute for Advanced Study Value-Added Galaxy Catalog (KIAS VAGC), a catalog of galaxies based on the Large Scale Structure (LSS) sample of New York University Value-Added Galaxy Catalog (NYU VAGC) Data Release 7. Our catalog supplements redshifts of 10,497 galaxies with 10 < $r_P\;{\leq}\;17.6$ (1455 with 10 < $r_P\;{\leq}\;14.5$) to the NYU VAGC LSS sample. Redshifts from various existing catalogs such as the Updated Zwicky Catalog, the IRAS Point Source Catalog Redshift Survey, the Third Reference Catalogue of Bright Galaxies, and the Two Degree Field Galaxy Redshift Survey have been put into the NYU VAGC photometric catalog. Our supplementation significantly improves spectroscopic completeness: the area covered by the spectroscopic sample with completeness higher than 95% increases from 2.119 to 1.737 sr. Our catalog also provides morphological types of all galaxies that are determined by the automated morphology classification scheme of Park & Choi (2005), and related parameters, together with fundamental photometry parameters supplied by the NYU VAGC. Our catalog contains matches to objects in the Max Planck for Astronomy (MPA) & Johns Hopkins University (JHU) spectrum measurements (Data Release 7). This new catalog, the KIAS VAGC, is complementary to the NYU VAGC and MPA-JHU catalog.

• 천문학회보
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• 제36권2호
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• pp.64-64
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• 2011

We present a new quasi-stellar object (QSO) selection algorithm using a Support Vector Machine, a supervised classification method, on a set of extracted time series features including period, amplitude, color, and autocorrelation value. We train a model that separates QSOs from variable stars, non-variable stars, and microlensing events using 58 known QSOs, 1629 variable stars, and 4288 non-variables in the MAssive Compact Halo Object (MACHO) database as a training set. To estimate the efficiency and the accuracy of the model, we perform a cross-validation test using the training set. The test shows that the model correctly identifies ~80% of known QSOs with a 25% false-positive rate. The majority of the false positives are Be stars. We applied the trained model to the MACHO Large Magellanic Cloud (LMC) data set, which consists of 40 million lightcurves, and found 1620 QSO candidates. During the selection, none of the 33,242 known MACHO variables were misclassified as QSO candidates. In order to estimate the true false-positive rate, we crossmatched the candidates with astronomical catalogs including the Spitzer Surveying the Agents of a Galaxy's Evolution (SAGE) LMC catalog and a few X-ray catalogs. The results further suggest that the majority of the candidates, more than 70%, are QSOs.

• 안보군사학연구
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• 통권3호
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• pp.197-242
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• 2005

Active catalog is a kind of digital content that enables consumers to test the functions and features of products from their PCs as if they were using it in real life, by simulating the actions and responses of the product. This new type of interactive digital content can be used extensively to make sales personnel training manuals, sales tools, user manuals and user trouble shooting documents. With active catalogs, companies will be able to compare different designs, show actions according to different functions, and evaluate user reaction to new products without having to produce a single physical prototype or mock-up. At the same time, consumers will be able to understand and 'operate' the product and make well-informed purchase decisions. In this paper, we present a visual event-driven modeling tool, PlayMo, for creating active catalogs, analyze the advantages of using PlayMo, describe the event-driven method used by PlayMo and also introduce two enhanced characteristics of the Event Flow Chart with which the events in PlayMo are structured. Interactive digital content by using the PlayMo3D makes easy, simple and effective design for e-learning, e-catalogue, e-marketing/sales, e-prototyping, customer support, etc. Through its application-ready 3D function visualization solution, engineers and designers can rapidly turn a CAD design model into a 3D interactive virtual product, and the effective function prototyping job can be also completed within a minute.

• 천문학논총
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• 제30권2호
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• pp.461-462
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• 2015

Quasars are among the farthest and brightest objects known in the universe. Because quasars are mostly observed in the redshift range between 1 and 3, they can be used to study large scale structure in the universe, and its evolution over the past billion years. An important issue is the evolution of the quasar luminosity function, which has been investigated for relative small samples of the 2QZ catalog. Here we extend the study to 3 quasar samples, the most recent data of the Milliquas, Master and 2QZ quasar catalogs to determine the luminosity function of quasars and its evolution, using the Standard cosmological ${\Lambda}CDM$ model with ${\Omega}_{\Lambda}=0.73$, ${\Omega}_M=0.27$, and $H_0=70kms^{-1}Mpc^{-1}$. For the purpose of this analysis we initially used 0.25-mag bins and approximately 0.180-redshift bins, then calculated the comoving distance and comoving volume for each bin of redshift and calculated the number of objects in each bin per unit volume, in order to find the number density per absolute magnitude bin. Our analysis on the basis of these new and much more complete datasets is largely in agreement with earlier studies of the luminosity evolution of quasars.

• 정보처리학회논문지D
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• 제9D권3호
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• pp.523-530
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• 2002

최근에 인터넷의 폭 넓은 사용과 구조적 웹 문서를 기술할 수 있는 XML의 기술에 힘입어, 인터넷과 XML을 기반으로 하는 전자상거래에 관한 연구가 많은 조직과 기업에서 활발하게 진행되고 있다. 기존에 연구되었던 상품 카탈로그는 상품 정보가 분류되어 표현되지 않을 뿐만 아니라 구체적이지 않고, 다양한 상품들의 상세한 정보들을 체계적으로 기술하기에는 미흡하다. 본 논문에서는 다양한 상품들을 기술하는데 사용될 수 있는 정보들을 분석하고 분류하고, 기존의 연구들을 보완하여 다양한 종류의 상품 정보를 통합하여 기술 할 수 있는 모델을 제안한다. 그리고 다양한 상품에 대해서 제안된 모델을 적용하여 그 효용성을 검증한다. 제안된 모델의 사용은 하나의 상품 카탈로그 모델로 다양한 상품의 정보를 자세히 표현할 수 있어 여러 종류의 상품을 취급하는 인터넷 쇼핑몰 등의 유사 기종에 편리함과 효율성을 준다.

• 천문학회보
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• 제46권1호
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• pp.54.2-54.2
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• 2021

Galaxy clusters are the largest structures in the universe located at the top of the cosmological hierarchical model, so the evolution of the universe can be understood by studying clusters of galaxies. Therefore, finding a larger number of galaxy clusters plays an important role in exploring how the universe evolves. A large number of catalogs for galaxy clusters in the northern sky have been published; however, there are few catalogs in the southern sky due to the lack of wide sky survey data. KMTNet Synoptic Survey of Southern Sky(KS4) project, which observes a wide area of the southern sky about 7000 deg² with KMTNet telescopes for two years, is in progress under the SNU Astronomy Research Center. We use the KS4 multi-wavelength optical data and measure photometric redshifts of galaxies for finding galaxy clusters at redshift z<1. Currently, the KS4 project has observed approximately 33% of the target region, and a pipeline that measures photometric redshifts of galaxies has been created. When the project is completed, we expect to find more than a hundred thousand galaxy clusters, and this will improve the study of galaxy clusters in the southern sky.

• 천문학회보
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• 제46권2호
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• pp.68.2-68.2
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• 2021

Galaxy clusters are the largest structures in the universe located at the top of the cosmological hierarchical model, so the evolution of the universe can be understood by studying clusters of galaxies. Therefore, finding a larger number of galaxy clusters plays an important role in exploring how the universe evolves. A large number of catalogs for galaxy clusters in the northern sky have been published; however, there are few catalogs in the southern sky due to the lack of wide sky survey data. KMTNet Synoptic Survey of Southern Sky(KS4) project, which observes a wide area of the southern sky about 7000 deg² with KMTNet telescopes for two years, is in progress under the SNU Astronomy Research Center. We use the KS4 multi-wavelength optical data and measure photometric redshifts of galaxies for finding galaxy clusters at redshift z<1. Currently, the KS4 project has observed approximately 50% of the target region, and a pipeline that measures photometric redshifts of galaxies has been created. When the project is completed, we expect to find more than a hundred thousand galaxy clusters, and this will improve the study of galaxy clusters in the southern sky.